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Electromagnetic lead screw driving type precise-punching presser

An electromagnetic screw and driven technology, applied in the field of fine blanking presses, can solve the problems of short service life, easy damage to permanent magnets, and low control accuracy, achieve low cost, improve production efficiency and processing accuracy, and avoid The effect of spring aging

Active Publication Date: 2010-06-30
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The press driven by a linear induction motor has low efficiency, large current impact, and low control accuracy; while the press driven by a permanent magnet linear synchronous motor has a permanent magnet on the punching shaft, which is easily damaged during the working process , the service life is not long

Method used

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  • Electromagnetic lead screw driving type precise-punching presser
  • Electromagnetic lead screw driving type precise-punching presser

Examples

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Embodiment Construction

[0026] Such as figure 1 The main structure of the shown fine blanking press consists of a fuselage 1 , a working platform 2 , a controller 3 and a frame 4 . The working platform 2 is provided with a T-shaped slot, which is used to fix the device for clamping the die, the blank holder system, the back pressure system and other components. The frame 4 is connected with the fuselage 1 through the connecting plate 5, and its height can be adjusted according to the requirements of the closed height. The electromagnetic lead screw system is installed on the frame 4. The electromagnetic nut 6 is fixed on the frame 4 by bolts. The electromagnetic nut 6 includes two annular iron cores 7, each annular iron core 7 is divided into upper and lower parts by a coil 8, and the distance between the two parts is n / 2 (n is a positive odd number) double pitch. An annular permanent magnet 9 is sandwiched between the two iron cores 7, and the distance between the two iron cores is n / 4 (n is a po...

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Abstract

The invention discloses an electromagnetic lead screw driving type precise-punching presser which comprises a presser body, a working platform, a controller and a stand, wherein the presser body is fixed on the working platform; the stand is arranged above the working platform, and is movably connected with the stand through a connecting plate. The stand is provided with an electromagnetic lead screw system which comprises an electromagnetic nut and a punch shaft. The electromagnetic nut is fixed on the stand, and comprises two circular cores. Each circular core is divided into two parts by a coil. A circular permanent magnet is clamped between the two cores. The punch shaft penetrates through the stand and the electromagnetic nut, and has a gap with the electromagnetic nut. Threads which have the same pitch are processed at the inner hole side of the circular core and the part of the punch shaft. The controller is used for controlling the density, the frequency and the phase of the current in the coil. The invention has the advantages of adjustable speed and punch force, quick response, high guiding and positioning precision, simple structure, convenient control, less component consumption, low noise, convenient maintenance and long service life.

Description

technical field [0001] The invention belongs to the field of electromechanical technology, and relates to a fine blanking press using an electromagnetic screw rod to drive a punch or a slider, which can be widely used in precision blanking equipment. Background technique [0002] Fine blanking (fine blanking) is an advanced processing and forming process with good technical and economic effects, which can directly obtain finished parts with small shear surface roughness and dimensional tolerance. In order to meet the requirements of the fine blanking process, the fine blanking press has the following main features: fast mold closing and return stroke, low and adjustable punching mold clamping speed; small gap between fine punching dies, high guiding accuracy; accurate end position to prolong the life of the mold . At present, the main transmission forms of fine blanking presses are generally mechanical and hydraulic. Mechanical presses mostly use a rotating motor to drive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B1/42B30B15/14
CPCB30B1/42
Inventor 刘晓叶云岳张玉秋黄敏强
Owner ZHEJIANG UNIV
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